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Finding the Fourth Proportional to 249,071.64, 343,317.33 and 168,469.76

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Solution

The fourth proportional to 249,071.64, 343,317.33 and 168,469.76 is: 232,216.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,071.64 : 343,317.33 = 168,469.76 : x
  2. Step 2: Convert to fraction form
    249,071.64/343,317.33 = 168,469.76/x
  3. Step 3: Cross multiply
    249,071.64x = 343,317.33 × 168,469.76
  4. Step 4: Simplify right side
    249,071.64x = 57,838,586,472.35
  5. Step 5: Solve for x
    x = 57,838,586,472.35/249,071.64
  6. Step 6: Final answer
    x = 232,216.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.